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                    记一次拯救我的博客
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                        <time datetime="2019-9-21 17:52:56" itemprop="datePublished">
                            2019-09-21 17:52
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  <blockquote> 
   <p>事情的缘由是我服务器到期了，又没来得及续费，导致无法上服务器备份数据（使用的腾讯云老版本的学生机，每月一块钱的那种，这个月刚好到期，所以不想再用原价续费了，而且 1g 内存可能满足不了以后的需求，所以索性重新买了一台...）</p> 
  </blockquote> 
  <h2 id="数据咋办">数据咋办？</h2> 
  <p>既然不想续费了，所以是无法上服务器备份数据的，正当我想去咬牙续费的时候，突然想起来曾经把数据备份到 Github 上过... 那么这就相当好办了。</p> 
  <h2 id="重装博客">重装博客</h2> 
  <p>晒一张我在 Github 上的备份，虽然是五天前备份的了，但是影响不大，好在我这几天都没怎么操作。 <img src="https://cdn.ryanc.cc/img/blog/thumbnails/5c26a8586222dda543f8ae759eb0fdce.jpg" alt="Screenshot_20190921175629921_com.thirtydegreesray.openhub.jpg"></p> 
  <p>嗯，得益于我用的 <a href="https://github.com/halo-dev/halo">Halo</a> 博客系统，所以只需要备份这一个目录就完全 OK，所有数据都不会丢失。因为这个系统他的用户数据和程序本身是完全分开的(数据库 db，上传的附件 upload，配置文件 application.yaml)，当然，所有主题也是在这个目录的，但是因为主题是可以另外下载的，而且主题的配置数据也在数据库，所以我没有备份。</p> 
  <p>接下来我只需要把这个仓库克隆到服务器就好了。</p> 
  <pre><code class="language-bash">git clone https://github.com/ruibaby/blog-data.git .halo
</code></pre> 
  <p>然后配置个 Java 环境，下载个 Halo 运行包。启动就完事。</p> 
  <h3 id="配置服务器">配置服务器</h3> 
  <p>这个环节没啥做的，配置个 Java 环境就好了，一行命令的事。</p> 
  <p>然后我跟着这个教程就完成了所有事情。<a href="https://halo.run/guide/install/install-with-linux.html">https://halo.run/guide/install/install-with-linux.html</a></p> 
  <p>当然，我并没有配置反向代理，因为我是使用的又拍云的 cdn 全站加速，去控制台改改服务器 ip (源站地址)就好了。</p> 
  <h2 id="自动备份脚本">自动备份脚本</h2> 
  <blockquote> 
   <p>考虑到后面可能会忘记备份数据，所以写了个自动提交的脚本。</p> 
  </blockquote> 
  <pre><code class="language-bash">#! /bin/bash

message=`date -u +"%Y_%m_%d_%H_%M"`

cd /root/.halo

git add application.yaml upload/ db/

git commit -m $message

git push
</code></pre> 
  <ol> 
   <li>将其写入到一个 <code>sh</code> 文件里面。</li> 
   <li>赋予执行权限 <code>chmod +x {NAME}.sh</code>。</li> 
   <li>初始化 <code>~/.halo</code> 仓库，<code>cd ~/.halo &amp; git init</code>。</li> 
   <li>去 Github 配置 <code>ssh key</code>。这一步不详细讲，自行百度。目的是在 <code>push</code> 的时候不需要输入用户名和密码。</li> 
   <li>执行 <code>crontab -e</code> 添加 <code>00 03 * * * /bin/sh {NAME}.sh 的绝对路径</code>。（<code>00 03 * * *</code> 表示每天三点执行）。</li> 
   <li>执行 <code>service crond restart</code> 使配置的定时任务生效。</li> 
  </ol> 
  <h2 id="结尾">结尾</h2> 
  <p>数据无价，还好这次有备份数据。</p> 
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